Memory usage
cupy.ones((1400000,1000))
array uses 10856MiB/11019MiB on RTX 2080 Ti.
import cupy as cp
x_gpu=cp.ones((1400000,1000))
$ nvidia-smi
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 440.33.01 Driver Version: 440.33.01 CUDA Version: 10.2 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce RTX 208... Off | 00000000:01:00.0 Off | N/A |
| 23% 42C P2 62W / 250W | 10856MiB / 11019MiB | 0% Default |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 28791 C python 10845MiB |
+-----------------------------------------------------------------------------+